Mild
Average highs are around 23°C, so days are mild rather than hot.
September verdict
Sioux Falls, South Dakota, United States in September
Weather score57Good
Good for holiday weather
Average highs are around 23°C, so days are mild rather than hot. Sunshine averages 8h per day, so bright days are a strong part of the month. Rainfall averages 74mm, which is relatively low for holiday planning.
September weather
Monthly averages
Temp
23°C
Rain
74mm
Sun
8h
Weather score
57
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 74mm, which is relatively low for holiday planning.
Bright
Sunshine averages 8h per day, so bright days are a strong part of the month.
Map
Weather map
Compare Sioux Falls, South Dakota, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September23°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
Rain
September74mm average rain
September is wetter than Sioux Falls' yearly average, so flexible plans matter more.
Driest monthsJanuary to March and November to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September8 hours average sun
September sits close to Sioux Falls' yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
Weather score
September57 weather score
September sits close to Sioux Falls' yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.
Hotels in Sioux Falls, South Dakota, United States
Marriott
Sheraton Sioux Falls Hotel & Convention CenterSioux Falls, South Dakota, USA
Courtyard Sioux FallsSioux Falls, South Dakota, USA
Fairfield Inn & Suites Sioux FallsSioux Falls, South Dakota, USA
Fairfield Inn & Suites Sioux Falls AirportSioux Falls, South Dakota, USA
SpringHill Suites by Marriott Sioux FallsSioux Falls, South Dakota, USA
Residence Inn Sioux FallsSioux Falls, South Dakota, USA